What is encryption?

Encryption is the process of converting readable information into coded data to protect it from unauthorized access. Only someone with the correct key can decode and read the original information.

When data is encrypted, it becomes unreadable to hackers. For example, when you enter your credit card details on a secure website (HTTPS), the information is encrypted before being sent over the internet.

Encryption works using mathematical algorithms and keys. There are two main types:

• Symmetric encryption – Uses the same key to encrypt and decrypt data.
  
  

• Asymmetric encryption – Uses two keys: a public key to encrypt data and a private key to decrypt it.
  
  

Encryption is used in messaging apps, online banking, cloud storage, and VPN services. It protects sensitive information such as passwords, personal data, and financial transactions.

Without encryption, data sent over networks could be intercepted and read by attackers.

In summary, encryption protects digital information by converting it into secure code that can only be unlocked with the correct key.